Jr East Train Simulator Build 11779437 May 2026

For decades, train simulation fans have been divided into two camps: those who enjoy the artistic, mod-heavy worlds of Train Simulator Classic (Dovetail Games) and those who crave the cold, hard precision of commercial-grade operational software. The sits firmly in the second camp. But with the release of Build 11779437 , the software has taken a massive leap forward, blurring the line between "video game" and "professional driver training tool."

| Metric | Build 116700 | Build 11779437 | | :--- | :--- | :--- | | | 58 fps | 87 fps | | 1% Low FPS | 42 fps | 71 fps | | VRAM Usage | 6.2 GB | 5.1 GB | | Load Time (to cab) | 24 seconds | 14 seconds | JR EAST Train Simulator Build 11779437

For the purist, Build 11779437 offers the most authentic braking curve simulation on the market. You cannot "cheat" the deceleration; the train weight calculation is live and unforgiving. According to data-mined strings within Build 11779437, references to "H5 Series Shinkansen" and "Hakodate LIDAR data" suggest that JR East is preparing a Hokkaido Shinkansen expansion. However, the build number indicates this will be a free core update preceding a paid DLC. For decades, train simulation fans have been divided

Additionally, the build contains commented code regarding . Currently, the game only supports DLSS 2.0; Frame Generation is likely coming in Build 11800000. Conclusion: Is Build 11779437 Worth It? If you already own JR EAST Train Simulator, Build 11779437 is a mandatory installation . The performance uplift on mid-range hardware is significant, and the input lag reduction transforms the experience from a clunky tech demo into a polished simulator. You cannot "cheat" the deceleration; the train weight